• Country
• United States of America (USA)

• Manufacturer / Brand
• Detrola; Detroit (MI)

• Year
• 1932

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 37359

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 4

• Valves / Tubes
• 35 or 24 24 47 80

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown); 1 AF stage(s)

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Alternating Current supply (AC) / 110 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: First Produced Detrola Radio 4 TUBE TRF'32 - Detrola; Detroit MI

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• Notes

• Generally accepted by collectors as the first production Detrola model. It is a basic 4-tube TRF transformer powered radio. No model numbers appeared on the first Detrola models. I feel the title should include that this is the FIRST Detrola Radio Manufactured.

  Stein listed only one band.

• External source of data
• Ernst Erb

• Source of data
• Machine Age to Jet Age II

• Circuit diagram reference
• Rider's Perpetual, Volume 5 = ca. 1934 and before

• Mentioned in
• Cathedral & Tombstone Radios (page 93.)

• Other Models

• Here you find 334 models, 195 with images and 291 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Detrola; Detroit (MI)